While we can't meet you in person until the health crisis ends, our volunteers are still active and available to assist you online.
We are currently offering virtual advice clinics, presentations and workshops via Zoom. Here are just a few of the many presentations we offer:
  • Houseplants: Our Constant Garden
  • Landscaping with Trees and Large Shrubs
  • Putting the Garden to Bed

Have a garden question? Visit our Ask a Master Gardener page.
We'll update this notice if things change. Meanwhile, stay safe, and happy gardening.

Cut back chives and mint and plant in pots 5 cm wider than the root ball. After first snowfall, move to an unheated shed or garage. Water sparely until branches perk up, then moderately. In January, move to a very cool bright area and later, into a warm, sunny south window. ... See MoreSee Less

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Eutrochium maculatum (Spotted Joe Pye Weed) North American native, with fall interest, and beautiful seed heads. Have some? Get some. ... See MoreSee Less

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Harvesting winter squash after a light frost will give you a sweeter squash but it won’t store well. Leave a 2-4 cm stem on the squash and allow the squash to cure by laying it out in a sunny spot for a week. Curing will harden the skin so that the squash will store better. ... See MoreSee Less

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Pot up thyme and bring into a room where it can be cool at least in the evenings. Rosemary can withstand a little frost, but must be brought indoors before a hard freeze. Like thyme, it will need a cool indoor location. It must not be allowed to dry out completely. ... See MoreSee Less

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Glorious foliage colour. Hydrangea quercifolia "Gatsby Pink" Oakleaf Hydrangea nativar. ... See MoreSee Less

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Water is the driving force of all nature. Leonardo da Vinci
Add a water feature to your garden next year!
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Mark your calendar! Tuesday, Oct. 27, 7:30 PM, go to the Ottawa Horticultural Society YouTube channel for a Paul Zammit webinar on The Soul of the Garden.
#paulzammit #whygarden #ottawahorticulturalsociety #gardenaesthetics
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Just a reminder. When bringing houseplants indoors, watch for tagalong pests! ... See MoreSee Less

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We're still delivering helpful gardening advice despite the pandemic. Your organization can book a Master Gardener to speak to your team via Zoom! Visit our website or email to find out more. ... See MoreSee Less

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Toronto Master Gardeners

The Toronto Master Gardeners are volunteers committed to providing the public with horticultural information, education and inspiration. The resources and services available through this site are designed to help Toronto residents use safe, effective, proven and sustainable horticultural practices to create gardens, landscapes and communities that are both vibrant and healthy.

Gardening Guides

Our useful Gardening Guides provide introductory information for the home gardener about a broad range of horticultural topics.

Book A Master Gardener

Local organizations can book our volunteers to deliver horticultural presentations, provide question and answer sessions, and staff advice clinics.

Become a Master Gardener

If you’re in Toronto, here’s how to become a Master Gardener:

Ask A Master Gardener

Toronto Master Gardeners are happy to answer your gardening questions posted on this site, called in to our Infoline or asked in person at our scheduled events.

Gardening Tips

Throughout the year, Toronto Master Gardeners post brief gardening tips on this site to help you with your seasonal gardening tasks.


Master Gardeners of Ontario

Compost Council of Canada

Toronto Region Conservation Authority

Toronto Botanical Gardens

City of Toronto

Toronto Public Library

Toronto Master Gardeners Code of Conduct

The Toronto Master Gardeners (TMG) is an organization committed to fostering an environment in which everyone we engage with, including fellow members and the general public, is treated with dignity and respect, regardless of race, national or ethnic origin, colour, age, gender, sexual identity or sexual orientation, religion, political affiliation or abilities. All members are expected to adhere to this principle.

The TMG does not tolerate any form of discrimination, harassment, abuse or bullying.

If you feel that the code of conduct has been breached, please contact the executive coordinator or assistant coordinator, whose contact information can be found here.